What Is Zeffy?
Zeffy, a registered B Corp™, is the only 100% free fundraising platform built for nonprofits. No platform fees. No transaction fees. No credit card fees, ever.
Too many nonprofits lose thousands of dollars a year to fundraising software that chips away at every donation. We believe the technology available to nonprofits should actually serve their mission, not extract from it. That's why we built one powerful, easy-to-use platform, and made it completely free.
See why our users rated Zeffy (formerly Simplyk) as one of the best fundraising platforms for nonprofits here.
How does Zeffy stay free? We're funded by optional tips from donors. When someone completes a donation, they can choose to leave a small contribution to help keep Zeffy running. It's fully optional, always separate from the donation to your organization, and clearly explained — no tricks. This model has kept Zeffy financially sustainable since 2023, and it means our incentives are fully aligned with yours.
Trusted by over 100,000 nonprofits, Zeffy has helped organizations raise $2B+ without losing a single dollar to fees.
See why nonprofits rate Zeffy #1 for customer satisfaction →
What can I do with Zeffy?
From fundraising campaigns to donor communications, everything you need to run your nonprofit lives in one place, completely free.
💳 Donations
Create beautiful, branded donation forms in minutes. Accept one-time and recurring gifts, credit cards, Apple Pay, Google Pay, and bank transfers — and keep every dollar you raise. Automatic tax-compliant receipts are sent to donors instantly, saving your team hours of admin.
Learn more about donation forms →
🎟 Event Ticketing
Sell tickets for in-person, virtual, or hybrid events with frictionless forms your supporters can complete in minutes. Customize ticket types, collect attendee info, issue e-tickets, and scan them at the door. Manage your full guest list from one dashboard — no platform fees, no transaction fees.
Learn more about event ticketing →
🤝 Peer-to-Peer Campaigns
Multiply your reach by empowering your community to fundraise on your behalf. Launch individual or team campaigns in a few clicks, track live progress with a campaign thermometer, and manage every fundraiser from one dashboard. Simple to set up, easy to share, completely free.
Learn more about peer-to-peer →
🏷 Memberships
Make it easy for supporters to join your cause and renew automatically. Set up membership tiers, collect member information, and manage renewals - all from your Zeffy dashboard, at zero cost.
🛍 Online Shop
Turn merchandise into mission impact. Set up a branded online store, list products with images, prices, and descriptions, and let Zeffy automatically track inventory and process orders. Accept all major payment methods - completely free.
Learn more about Zeffy's online shop →
🎰 Raffle
Launch a fully personalized online raffle in minutes. Sell tickets online, generate scannable e-tickets, offer flexible ticket bundles, and export participant reports in one click - all free.
🔨 Auction
Run online, in-person, or hybrid auctions without the platform fees. Add items with starting bids and bid increments, let supporters bid from any device, and automatically charge winners when the auction closes. Track every bid in real time from your dashboard.
Learn more about Zeffy auctions →
👥 CRM & Donor Management
See every contact, donation, and interaction in one clear view. Track giving history across all your campaigns and events, segment your supporters, manage lists and notes, and automate year-end tax receipt summaries — no more juggling spreadsheets or separate tools.
Learn more about donor management →
📧 Newsletters & Email
Build stronger donor relationships without extra tools. Send targeted emails directly from the same platform you use to fundraise. Use drag-and-drop templates, schedule campaigns, track opens and clicks, and see which emails drive donations — all in one place, all free.
Learn more about Zeffy's email builder →
✉️ Donor Mail
Send personalized physical thank-you letters and fundraising appeals without touching a printer or envelope. Write your letter, add donor names and a QR code linking to your donation page, pick your list, and send. Zeffy handles printing, stuffing, and mailing — for just $1 per letter, among the lowest prices for full-service donor mail.
Want to test out our platform?